Patent US3280256A successfully refreshed from Google Patents.
US3280256A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Communication equipment set, keyboard, printer and recorder
Assignee: SCM Corp
•
Filing: 1962-04-03
•
Granted: 1966-10-18
•
Expires: 1982-04-03
Abstract
No abstract record available.
Inventors
- 👤 Clayton H Clark
- 👤 Donald J Stefanik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:20
CPC Classifications
H; H04; H04L; H04L17/00; H04L17/16; H04L17/24; B; B41; B41J; B41J1/00; B41J1/22; B41J1/32; G; G11; G11B; G11B15/00; G11B15/18; G11B15/26; G11B15/34; H04L13/00; H04L13/02; H04L13/06; H04L13/08; H04L13/18; H04L13/182; H04L17/02; H04L17/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
A MULTIPLE BIT CODE SIGNAL COMMUNICATION KEYBOARD TRANSMITTER, PRINTER AND MAGNETIC TAPE RECORDER-READER SET INCLUDING: ELECTRONIC CONTROLS AND A COMMON POWER SUPPLY UNIT FOR ALL THREE MAJOR COMPONENTS AND A TIME BASE DEVICE FOR SAID KEYBOARD TRANSMITTER; ELECTRONIC MEANS IN SAID KEYBOARD TRANSMITTER FOR ENABLING ENCODING OF KEYBOARD SELECTIONS IN BOTH PARALLEL AND SERIAL FORM IN SEQUENTIAL ORDER; AND SAID ELECTRONIC CONTROLS INCLUDING A MODE CONTROL MEANS PERMITTING SELECTIVE CODE TRANSMISSION OUTPUT UNDER CONTROL OF SAID KEYBOARD AND OF SAID RECORDER WITH MONITORING IN EITHER CASE BY SAID PRINTER AND INCLUDING: MEANS ENABLING CONJOINT TRANSMISSION OF SERIAL CODE FORM INFORMATION FROM SAID KEYBOARD TRANSMITTER, AT A TRANSMISSION RATE CONTROLLED BY SAID TIME BASE DEVICE, TO SAID PRINTER AND OF THE SAME INFORMATION IN PARALLEL CODE FORM FROM SAID KEYBOARD TRANSMITTER TO SAID RECORDER.
Claim 2
Dependent Claim
133 words
A MULTIPLE BIT CODE SIGNAL COMMUNICATION KEYBOARD TRANSMITTER, PRINTER AND MAGNETIC TAPE RECORDER-READER SET INCLUDING: ELECTRONIC CONTROLS AND A COMMON POWER SUPPLY UNIT FOR ALL THREE MAJOR COMPONENTS AND A TIME BASE DEVICE FOR SAID KEYBOARD TRANSMITTER; ELECTRONIC MEANS IN SAID KEYBOARD TRANSMITTER FOR ENABLING ENCODING OF KEYBOARD SELECTIONS IN BOTH PARALLEL AND SERIAL FORM IN SEQUENTIAL ORDER; AND SAID ELECTRONIC CONTROLS INCLUDING A MODE CONTROL MEANS PERMITTING SELECTIVE CODE TRANSMISSION OUTPUT UNDER CONTROL OF SAID KEYBOARD AND OF SAID RECORDER WITH MONITORING IN EITHER CASE BY SAID PRINTER AND INCLUDING: MEANS ENABLING CONJOINT TRANSMISSION OF SERIAL CODE FORM INFORMATION FROM SAID KEYBOARD TRANSMITTER, AT A TRANSMISSION RATE CONTROLLED BY SAID TIME BASE DEVICE, TO SAID PRINTER AND OF THE SAME INFORMATION IN PARALLEL CODE FORM FROM SAID KEYBOARD TRANSMITTER TO SAID RECORDER.
References Cited (Backward Citations)
US1998555A
Cited
US2267915A
Cited
US2375902A
Cited
US2972016A
Cited
US2770304A
Cited
US2860325A
Cited
US2859276A
Cited
US3025348A
Cited
US3018332A
Cited
US3006997A
Cited
US3084219A
Cited
US3013119A
Cited
US3016423A
Cited
US3018721A
Cited
US3064561A
Cited
US3059048A
Cited
US3156181A
Cited
US3157116A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |